JP5911393B2 - Air conditioner outdoor unit - Google Patents

Description

  The present invention relates to an air conditioner outdoor unit provided with a motor holder.

In a conventional air conditioner outdoor unit, a fan such as a propeller fan is mounted in the blower chamber. The fan is attached to the shaft portion of the motor. The motor is held by a motor holder, and is attached to the motor attachment surface of the motor attachment member that constitutes the motor holder so that the rotation axis is parallel to the direction of the airflow.
At that time, the motor holder is preferably provided away from the heat exchanger so as not to obstruct the airflow from the heat exchanger. However, when a large fan is mounted, the space in the fan room is limited. The motor mounting surface of the motor mounting member needs to be provided near the heat exchanger.
Therefore, in a conventional outdoor unit for an air conditioner, a metal plate is used as a motor mounting member, and the motor mounting surface is protruded toward the heat exchanger by bending, thereby separating the motor holder from the heat exchanger and the motor mounting surface. Only the heat exchanger can be brought close to the heat exchanger (see Patent Documents 1-3).

JP 61-101774 (page 2, lower right column, line 18-page 3, upper left column, line 1, FIG. 1) JP 2000-240983 A (paragraph [0008], FIG. 3) Microfilm of Japanese Utility Model No. 63-167502 (Japanese Utility Model Publication No. 2-89230) (Left column, page 1, lines 7-8, Fig. 1)

  In the conventional air conditioner outdoor unit, in order to stably support the fan and the motor, it is necessary to make the motor mounting member thicker or larger, and there is a problem that the material cost and weight of the motor holder increase. In addition, since the motor mounting surface of the motor mounting member is flat and the motor mounting member receives airflow from the heat exchanger at the front, the airflow from the heat exchanger is obstructed by the motor holder. there were.

  The present invention has been made in order to solve the above-described problems, and provides an air conditioner outdoor unit including a motor holder with reduced material cost and weight. Moreover, the air conditioner outdoor unit provided with the motor holder with reduced air resistance is obtained.

An air conditioner outdoor unit according to the present invention includes at least a fan, a motor that is a power source of the fan, and a motor holder that holds the motor, and the motor holder includes a motor attachment that attaches the motor. At least a motor mounting member having a surface formed thereon, a frame for mounting the motor mounting member, and a pair of frame fixing members for fixing the vicinity of both ends of the frame. The frame is perpendicular to the length direction of the frame. The motor mounting members can be mounted at substantially the same distance from both ends of the frame, and the pair of frame fixing members have the same shape and are identical to each other. distance the same direction or protrude in the opposite direction, the motor mounting surface, said motor mounting member is the drawn abutting said motor mounting Step in the entire circumference is formed by being provided in a through hole for inserting the outer shell of the motor is formed, toward projecting in the longitudinal direction of the frame from the through hole, 2 symmetrically about a center of the through hole notch shape of the portion is formed, those the motor lines and the shape and size of the surface to be attached to the mounting surface surrounding the all lines projected on those said motor mounting surface is substantially V equal of the motor, said enclosure The total length of the line is the shortest .

  In the air conditioner outdoor unit according to the present invention, the motor mounting surface of the motor mounting member is formed by drawing, so that the rigidity of the motor mounting member is improved. The same rigidity can be realized with a thin or small motor mounting member, and the material cost and weight of the motor holder can be reduced.

It is a perspective view of the air conditioner outdoor unit according to Embodiment 1 of the present invention. It is a perspective view in the state where the front cover and upper surface cover of the air conditioner outdoor unit according to Embodiment 1 of the present invention were removed. It is an exploded view of the air conditioner outdoor unit according to Embodiment 1 of the present invention. It is the perspective view and exploded view of the motor holder of the air conditioner outdoor unit which concerns on Embodiment 1 of this invention. It is an enlarged view of the motor attachment member periphery in the state which removed the motor of the air conditioner outdoor unit which concerns on Embodiment 1 of this invention. It is an enlarged view of a motor attachment member periphery in the state which attached the motor of the air conditioner outdoor unit which concerns on Embodiment 1 of this invention. It is an enlarged view of a cut-and-raised part periphery in the state which attached the motor of the air conditioner outdoor unit which concerns on Embodiment 1 of this invention. It is a figure which shows the airflow in the motor holder of the air conditioner outdoor unit which concerns on Embodiment 1 of this invention, and the air conditioner in a comparative example. It is sectional drawing of the motor periphery of the air conditioner outdoor unit which concerns on Embodiment 1 of this invention. It is the front view and left view of the motor holder of the air conditioner outdoor unit which concerns on Embodiment 2 of this invention. It is a figure which shows the conveyance state of the motor holder of the air conditioner outdoor unit which concerns on Embodiment 2 of this invention.

Hereinafter, an air conditioner outdoor unit according to the present invention will be described with reference to the drawings.
In the description of the embodiment, an air conditioner outdoor unit having a specific structure is described. However, an air conditioner outdoor unit having such a specific structure is included in the air conditioner outdoor unit according to the present invention. An air conditioner outdoor unit other than the above structure is included. Further, in the description of the embodiment, terms indicating directions (for example, “front”, “back”, “up”, “down”, “left”, “right”, “back”, “bottom”, etc.) are used. Although used appropriately, the present invention is not limited by these terms. Moreover, in each figure, the same code | symbol is attached | subjected to the same member or the same part. Moreover, illustration is abbreviate | omitted suitably about the fine structure. In addition, overlapping descriptions are simplified or omitted as appropriate.

Embodiment 1 FIG.
The air conditioner outdoor unit according to Embodiment 1 will be described below.
First, the overall structure of the air conditioner outdoor unit according to Embodiment 1 will be described with reference to FIGS. 1 to 3.
1 is a perspective view of an air conditioner outdoor unit according to Embodiment 1. FIG. As shown in FIG. 1, the outdoor unit 1 has a fan 2 such as a propeller fan built therein. As the fan 2 rotates, an air flow is generated from the back side of the outdoor unit 1 toward the front side. A front cover 3 is provided on the front surface of the outdoor unit 1. An upper surface cover 4 is provided on the upper surface of the outdoor unit 1.

  FIG. 2 is a perspective view of the air conditioner outdoor unit according to Embodiment 1 with a front cover and a top cover removed. As shown in FIG. 2, a blower chamber 5 is provided on the left side inside the outdoor unit 1. A machine room 6 is provided on the right side inside the outdoor unit 1. The blower chamber 5 and the machine chamber 6 are partitioned by a separator 7.

  A fan 2 is mounted in the blower chamber 5. The larger the fan 2 is, the more advantageous in terms of aerodynamics. However, since the space of the blower chamber 5 is limited, the shape of the blades of the fan 2 and the size of other components mounted in the blower chamber 5 are limited. Size is constrained. A heat exchanger 8 is mounted on the back side of the blower chamber 5. The airflow goes from the heat exchanger 8 to the front side of the blower chamber 5. At this time, the motor holder 9 that holds the motor serving as the power source of the fan 2 blocks the airflow.

  FIG. 3 is an exploded view of the air conditioner outdoor unit according to Embodiment 1. FIG. The fan 2 is attached to the shaft portion of the motor 10 serving as a power source. The motor 10 is attached to the motor holder 9 such that its axis is directed in the front-rear direction of the outdoor unit 1. Each member constituting the motor holder 9 has a sufficient thickness for stably supporting the fan 2 and the motor 10. Further, each member constituting the motor holder 9 has a complicated shape and improved rigidity.

Next, the structure of the motor holder of the air conditioner outdoor unit according to Embodiment 1 will be described with reference to FIGS.
4 is a perspective view and an exploded view of a motor holder of the air conditioner outdoor unit according to Embodiment 1. FIG. The motor holder 9 mainly includes a motor attachment member 11, a frame 12, a first frame fixing member 13, and a second frame fixing member 14. These parts are assembled by screwing with screws. A clamp (not shown) for bundling lead wires and the like (not shown) connected to the motor 10 is attached to the frame 12 of the motor holder 9 by screwing. The second frame fixing member 14 is fixed to the bottom surface of the outdoor unit 1. Further, the first frame fixing member 13 is fixed (hooked) to the heat exchanger 8 and then fixed to the outer cover (the front cover 3 and the upper cover 4) of the outdoor unit 1 by screwing.

  FIG. 5 is an enlarged view of the periphery of the motor attachment member with the motor of the outdoor unit of the air conditioner according to Embodiment 1 removed. The motor mounting member 11 is screwed to the frame 12 from the front side of the outdoor unit 1 with screws. The motor mounting member 11 is drawn so that a minimum area corresponding to the outer shape of the motor projects to the heat exchanger 8 side, and the projecting surface (surface A in FIG. 5) is the motor mounting surface A. Become. Further, the upper end and the lower end of the motor mounting member 11 are bent toward the front cover 3 side.

  Further, as shown in FIG. 5, the motor mounting member 11 is provided with a through hole 15 having a shape along the outline of the motor 10, and a cut and raised portion 16 is provided at a part of the periphery of the through hole 15. . Then, the outline of the motor 10 is inserted into the through hole 15.

  FIG. 6 is an enlarged view of the periphery of the motor attachment member in a state where the motor of the outdoor unit of the air conditioner according to Embodiment 1 is attached. The motor 10 is provided with a plurality of mounting legs 17. The motor 10 is screwed to the motor mounting member 11 from the front side of the outdoor unit 1 with a screw with the bottom surface of the mounting leg 17 in contact with the motor mounting surface A of the motor mounting member 11. The motor mounting surface A is simplified by drawing so that the shape and size are almost equal to the shortest total length line that surrounds all the lines projected from the bottom surface of each mounting leg 17 onto the motor mounting surface A. It is formed to have a shape that can be formed into a minimum size necessary for mounting the mounting legs 17.

  FIG. 7 is an enlarged view of the vicinity of the cut-and-raised part in a state in which the motor of the outdoor unit of the air conditioner according to Embodiment 1 is attached. A protrusion 18 is provided at the tip of the cut and raised portion 16. The mounting leg 17 of the motor 10 is sandwiched between the motor mounting surface A and the protrusion 18 and prevents the motor 10 from falling to the front cover 3 side when not screwed.

Next, the operation of the air conditioner outdoor unit according to Embodiment 1 will be described.
In the motor holder 9 of the air conditioner outdoor unit according to Embodiment 1, the motor mounting surface A of the motor mounting member 11 is formed by drawing. The drawing process complicates the shape, and the rigidity of the motor mounting member 11 is improved. That is, unlike the conventional motor mounting surface formed by bending, the motor mounting surface A formed by drawing is stepped in a plurality of directions, that is, all around. As a result, the rigidity is remarkably improved.

  Since the motor holder 9 supports the fan 2 and the motor 10 in the form of a cantilever, it is necessary to make each member constituting the motor holder 9 thicker or larger, and the total weight becomes several kilograms. When this weight increases, the total weight of the outdoor unit 1 increases, which is a burden on the operator in the assembly, transportation and installation of the outdoor unit 1. In the motor holder 9 of the air conditioner outdoor unit according to Embodiment 1, the shape is complicated and the rigidity is improved, so that the same rigidity as the conventional one is realized by the thinner or smaller motor mounting member 11. Therefore, material cost and weight can be reduced.

  In addition, the formation of steps on the entire circumference is achieved through multiple steps, that is, a single process called drawing, which reduces the processing costs required to improve rigidity. can do.

  Further, in the motor holder 9 of the outdoor unit of the air conditioner according to the first embodiment, since the minimum area according to the shape of the outer shell of the motor is drawn, the complicated shape is concentrated in a narrower region. The rigidity of the motor mounting member 11 can be further improved.

  In the motor holder 9 of the air conditioner outdoor unit according to Embodiment 1, bent portions are formed at the upper end and the lower end of the motor mounting member 11. By forming the bent portion in this way, the vertical load and bending moment generated by supporting the fan 2 and the motor 10 in the form of a cantilever are supported without thickening or increasing the motor mounting member 11. be able to.

Further, in the motor holder 9 of the air conditioner outdoor unit according to Embodiment 1, a cut-and-raised portion 16 is formed on a part of the periphery of the through hole 15. By forming the cut-and-raised portion 16 in this way, the shape of the motor mounting member 11 becomes more complicated and the rigidity is further improved. Further, when the motor 10 is attached to the motor attachment member 11, the motor 10 can be placed on the cut and raised portion 16 to be positioned or temporarily fixed, and the workability during assembly is improved.
The cut and raised portions 16 are preferably provided on the left and right sides of the through hole 15 as shown in FIG. In such a case, the vertical load and bending moment generated by supporting the fan 2 and the motor 10 in the form of a cantilever can be supported without making the motor attachment member 11 thicker or larger.

  Further, in the motor holder 9 of the air conditioner outdoor unit according to Embodiment 1, a protrusion 18 is formed on the cut and raised portion 16. By forming the protrusions 18 in this way, positioning or temporary fixing can be performed more reliably when the motor 10 is screwed. Instead of attaching the motor holder 9 to the outdoor unit 1 after attaching the motor 10 to the motor holder 9, as shown in FIG. 3, the motor holder 9 is attached to the outdoor unit 1, that is, a motor attachment member. Since the motor 10 is attached in a state in which the motor 11 is standing upright, the workability during assembly is further improved by positioning or temporarily fixing the motor 10 by the protrusion 18.

  FIG. 8 is a diagram illustrating an airflow in the comparative example and an airflow in the motor holder of the air conditioner outdoor unit according to Embodiment 1. Further, as shown in FIG. 8, in the motor holder 9 when the motor mounting member 11 is not subjected to drawing processing, the plane portion of the motor mounting surface A is wide, and the air against the airflow from the heat exchanger 8 of the outdoor unit 1 Resistance is great. On the other hand, in the motor holder 9 of the air conditioner outdoor unit according to the first embodiment, the drawing is performed so that the minimum area according to the motor shape protrudes to the heat exchanger 8 side, that is, the upstream side of the airflow. Therefore, air resistance is reduced.

  Further, in the motor holder 9 of the air conditioner outdoor unit according to the first embodiment, the upper end and the lower end of the motor mounting member 11 are bent toward the front cover 3 side, that is, the downstream side of the airflow, so the air resistance is increased. Without doing so, the rigidity of the motor mounting member 11 can be improved.

  FIG. 9 is a cross-sectional view of the periphery of the motor of the outdoor unit for an air conditioner according to the first embodiment. Further, as shown in FIG. 9, the fan 2, the motor 10, and the motor attachment member 11 are installed in series from the front cover 3 toward the heat exchanger 8. Since the fan 2 and the motor 10 need to be provided between the front cover 3 and the heat exchanger 8, the size of the fan 2 in the front-rear direction of the outdoor unit 1 is the motor provided in the motor mounting member 11. It is restricted by the position of the mounting surface A. That is, in order to increase the size of the fan 2, the motor mounting surface A needs to be provided near the heat exchanger 8. On the other hand, in order to reduce the air resistance, the motor mounting member 11 needs to be provided away from the heat exchanger 8. In order to satisfy these two conflicting requirements, it is necessary to mount the mounting leg 17 of the motor 10 close to the heat exchanger 8 without changing the position of the motor mounting member 11. In the outdoor unit of the air conditioner according to the first embodiment, the above-described two conflicting requirements are realized by forming the motor mounting surface A by drawing processing, that is, the drawn portion of the motor mounting member 11, that is, By attaching the non-drawn portion of the motor mounting member 11 to the frame 12 so that the motor mounting surface A is positioned closer to the heat exchanger 8, only the motor mounting surface A is close to the heat exchanger 8. It is possible to provide.

  Further, by bringing only the motor mounting surface A close to the heat exchanger 8 by drawing, the positions of the fan 2 and the motor 10, that is, the center of gravity of the fan 2 and the motor 10 approach the frame 12 of the motor holder 9. The motor holder 9 when the motor 10 is attached becomes more stable. And since the rigidity similar to the past can be realized with a thinner or smaller frame 12, the material cost and weight of the motor holder 9 can be further reduced. Further, the same rigidity as that of the prior art can be realized by the frame 12 having a narrow interval, and the width of the motor mounting member 11 is shortened by narrowing the interval of the frame 12, so that the air resistance can be further reduced.

  In addition, each member constituting the motor holder 9 is fixed by screwing, but by unifying the screwing direction, work such as lifting the motor holder 9 and changing the direction during assembly is omitted.

  In the air conditioner outdoor unit according to the first embodiment, each member constituting the motor holder 9 is fixed by screwing, but other fixing means such as welding may be adopted. Moreover, you may integrate each member.

  Further, the motor holder 9 of the air conditioner outdoor unit according to Embodiment 1 has the cut-and-raised portion 16 cut and raised to the front cover 3 side, but is not limited to such a case. For example, when the center of gravity of the fan 2 or the motor 10 is provided on the heat exchanger 8 side from the through hole 15, the cut and raised portion 16 may be cut and raised on the heat exchanger 8 side.

  Further, in the motor holder 9 of the outdoor unit of the air conditioner according to Embodiment 1, the upper end and the lower end of the motor mounting member 11 are bent toward the front cover 3, but only the upper end or only the lower end is bent. Good.

  In addition, the motor holder 9 of the air conditioner outdoor unit according to Embodiment 1 is provided with only the through hole 15 in the motor mounting member 11, but is provided with a through hole other than the through hole 15, The resistance may be reduced.

  Further, the motor holder 9 of the air conditioner outdoor unit according to the first embodiment is such that the bottom surfaces of the plurality of mounting legs 17 provided on the side surface of the motor 10 are attached to the motor mounting surface A. For example, the motor 10 may be provided with a protrusion that goes around its side surface, and the bottom surface of the protrusion may be attached to the motor attachment surface A.

  Moreover, although the motor holder 9 of the air conditioner outdoor unit according to Embodiment 1 includes the two motor attachment members 11, the motor holder 9 is not limited to two and may include one or three or more.

Embodiment 2. FIG.
The air conditioner outdoor unit according to Embodiment 2 will be described below.
The air conditioner outdoor unit according to the second embodiment is different from the air conditioner outdoor unit according to the first embodiment only in that the motor holder is configured to be upside down so that only the motor holder is described. To do. In addition, the description which overlaps with the air conditioner outdoor unit which concerns on Embodiment 1 is simplified or abbreviate | omitted suitably.
FIG. 10 is a front view and a left side view of a motor holder of an air conditioner outdoor unit according to Embodiment 2. As shown in FIG. 10, the motor holder 19 mainly includes a motor attachment member 20, a frame 12, and a pair of first frame fixing members 13.

The motor mounting member 20 of the motor holder 19 is provided with a through hole 21 having a shape along the outline of the motor 10, and the through hole 21 is formed with a notch 22 in the vertical direction. A lead wire connected to the motor 10 is inserted into the notch 22.
The motor mounting member 11 of the motor holder 9 of the air conditioner outdoor unit according to Embodiment 1 is also provided with the notch 22, but in the motor holder 19 of the air conditioner outdoor unit according to Embodiment 2, The notch portion 22 is different in that it is provided at two locations on the upper and lower sides.
With this configuration, even when the motor mounting member 20 is mounted upside down on the frame 12, the lead wire or the like connected to the motor 10 is formed in the notch 22 located below the through hole 21. It becomes possible to insert. When the motor mounting member 20 having the notch 22 provided only on the lower side of the through hole 21 as shown in FIG. 4 is attached to the frame 12 by turning upside down, the notch 22 is formed in the through hole 21. In that case, a lead wire or the like connected to the motor 10 may be inserted into the notch 22 located above the through hole 21. By providing the notch portions 22 at two positions, the lead wire connected to the motor 10 is inserted into the notch portion 22 located on the lower side of the through hole 21 even when the top and bottom are reversed. Thus, it is possible to perform wiring at a shorter distance.

  The pair of first frame fixing members 13 of the motor holder 19 are the same members as the first frame fixing members 13 of the motor holder 9 of the air conditioner outdoor unit according to Embodiment 1. By replacing the second frame fixing member 14 with the first frame fixing member 13, the members are made common, and costs such as mold costs are reduced.

As shown in FIG. 10, the pair of first frame fixing members 13 of the motor holder 19 has one first frame fixing member 13 protruding toward the heat exchanger 8 and the other first frame fixing member 13 serving as a front cover. It is provided so as to protrude to the 3 side. Further, the motor mounting member 20 is mounted at a position where the height position does not change even if the frame 12 is turned upside down. By being configured in this manner, the frame 12 can be provided on the outdoor unit 1 by turning upside down. In addition, when it is necessary to project the motor mounting surface A of the motor mounting member 20 to the heat exchanger 8 side, the motor mounting member 20 is mounted on the frame 12 after the frame 12 is mounted on the outdoor unit 1 or after being turned upside down. It is necessary to attach to.
FIG. 11 is a diagram illustrating a transport state of the motor holder of the air conditioner outdoor unit according to the second embodiment. In the case of such a configuration, in addition to being able to be installed upside down, as shown in FIG. 11, the motor holder 19 can be stacked in a compact manner, such as transportation costs. The cost is reduced.

  Further, as shown in FIG. 4, the pair of first frame fixing members 13 of the motor holder 19 may both be provided so as to protrude toward the heat exchanger 8 side. In such a configuration, the motor holder 19 cannot be stacked compactly, but the motor holder 19 is attached to the outdoor unit 1 in a state where the motor holder 19 is assembled, that is, with the motor attachment member 20 attached to the frame 12. It can be installed upside down.

  As mentioned above, although Embodiment 1 and Embodiment 2 were demonstrated, this invention is not limited to description of each embodiment. For example, it is possible to combine each embodiment and each modification.

  1 outdoor unit, 2 fan, 3 front cover, 4 top cover, 5 blower room, 6 machine room, 7 separator, 8 heat exchanger, 9 motor holder, 10 motor, 11 motor mounting member, 12 frame, 13 1st Frame fixing member, 14 Second frame fixing member, 15 Through hole, 16 Cut-and-raised part, 17 Mounting leg, 18 Projection, 19 Motor holder, 20 Motor mounting member, 21 Through hole, 22 Notch, A Motor mounting surface .

Claims (6)

At least a fan, a motor that is a power source of the fan, and a motor holder that holds the motor,
The motor holder is
A motor mounting member on which a motor mounting surface for mounting the motor is formed ;
A frame for mounting the motor mounting member, and a pair of frame fixing members for fixing the vicinity of both ends of the frame, respectively .
The frame is
Symmetric with respect to a plane perpendicular to its length direction,
The motor mounting member is
It can be attached at substantially the same distance from both ends of the frame,
The pair of frame fixing members are:
Have the same shape and project in the same direction or the opposite direction by the same distance from each other ,
The motor mounting surface is
Is formed by a step is provided is processed the motor mounting member is squeezed the entire circumference of this the motor mounting surface,
A through hole for inserting the outer shell of the motor is formed, and two cutout shapes are formed symmetrically with respect to the center of the through hole protruding from the through hole in the length direction of the frame,
The person the motor surface mounted on the mounting surface those said motor mounting surface to the lines and shape and size that surrounds all the lines obtained by projecting the substantially dog equal the motor,
The encircling line is
An air conditioner outdoor unit with the shortest overall length . The motor mounting surface, is formed so as to protrude toward the upstream side of the air flow, an air conditioner outdoor unit of claim 1. Before SL in the through hole, cut-and-raised portion substantially perpendicular to the motor mounting surface is formed, an air conditioner outdoor unit according to claim 1 or 2. The said cut-raised portions, the protrusions abutting a portion of the outline of the motor is provided, the air conditioner outdoor unit of claim 3. The motor mounting member, either one at least of the upper and lower ends is bent to the downstream side of the airflow, the air conditioner outdoor unit according to any one of claims 1-4. The motor mounting member is screwed to another member constituting the motor holder with a screw,
Said motor, said motor said to mounting member is threaded by screwing a screw from the same direction, the air conditioner outdoor unit according to any one of claims 1 to 5.

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